US20230060788A1 - Spindle drive - Google Patents

Spindle drive Download PDF

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Publication number
US20230060788A1
US20230060788A1 US17/797,667 US202117797667A US2023060788A1 US 20230060788 A1 US20230060788 A1 US 20230060788A1 US 202117797667 A US202117797667 A US 202117797667A US 2023060788 A1 US2023060788 A1 US 2023060788A1
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US
United States
Prior art keywords
housing
drive
spindle
pipe
collar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US17/797,667
Other languages
English (en)
Inventor
Sebastian Pfeifer
Michael Schneiderbanger
Frank Hälbig
Uwe Fischer
Tobias Bosecker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brose Fahrzeugteile SE and Co KG
Original Assignee
Brose Fahrzeugteile SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brose Fahrzeugteile SE and Co KG filed Critical Brose Fahrzeugteile SE and Co KG
Publication of US20230060788A1 publication Critical patent/US20230060788A1/en
Assigned to BROSE FAHRZEUGTEILE SE & CO. KOMMANDITGESELLSCHAFT, BAMBERG reassignment BROSE FAHRZEUGTEILE SE & CO. KOMMANDITGESELLSCHAFT, BAMBERG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Hälbig, Frank, Bosecker, Tobias, FISCHER, UWE, PFEIFER, Sebastian, SCHNEIDERBANGER, MICHAEL
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/10—Doors arranged at the vehicle rear
    • B60J5/101—Doors arranged at the vehicle rear for non-load transporting vehicles, i.e. family cars including vans
    • B60J5/107—Doors arranged at the vehicle rear for non-load transporting vehicles, i.e. family cars including vans constructional details, e.g. about door frame, panels, materials used, reinforcements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/2015—Means specially adapted for stopping actuators in the end position; Position sensing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/10—Covers; Housings
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/10—Covers; Housings
    • E05Y2201/11—Covers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/50—Mounting methods; Positioning
    • E05Y2600/52—Toolless
    • E05Y2600/526—Gluing or cementing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/50—Mounting methods; Positioning
    • E05Y2600/54—Welding
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/60—Mounting or coupling members; Accessories therefor
    • E05Y2600/63—Retainers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/546—Tailboards, tailgates or sideboards opening upwards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2031—Actuator casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
    • F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
    • F16H25/20—Screw mechanisms
    • F16H2025/2062—Arrangements for driving the actuator
    • F16H2025/2075—Coaxial drive motors

Definitions

  • the present disclosure relates to a spindle drive for an adjustment element of a motor vehicle.
  • Vehicles may include a spindle drive configured for use in all types of adjustment elements of a motor vehicle.
  • exemplary adjustment elements are tailgates, boot lids, side doors, bonnets or the like.
  • One or more problems addressed by the invention is to configure and develop an improved connection between a housing pipe of the drive housing and the spindle drive.
  • the housing pipe which is associated with the drive connection is not intended to be secured or in any case not exclusively to the housing cover, but instead in addition to the housing cover there is intended to be provided a separate housing collar which connects the housing pipe to the housing cover and consequently to the drive connection.
  • the housing collar is connected particularly by means of a weld connection, such as an ultrasonic weld connection, in a materially engaging manner to the housing pipe, for example, an outer housing pipe of a multi-component drive housing and a single-piece housing portion is thereby provided.
  • a housing collar is in this instance a component which in the assembled state, when it is therefore connected to the housing pipe in a materially engaging manner, protrudes at least partially from the housing pipe in a radially inward direction and consequently forms a cross section reduction of the housing component.
  • the axial extent of such a component is particularly in this instance many times, for example, at least five times smaller than the radial extent thereof and may thus be distinguished from a housing cap.
  • a housing collar has in this instance the advantage that it provides over the portion which forms the cross section reduction a comparatively large axial abutment face for axial abutment against the housing cover. Via this axial abutment face, correspondingly large forces can be absorbed in an axial direction.
  • a particularly secure connection which enables a transmission of correspondingly large forces in an axial direction is provided.
  • a corresponding connection of the housing pipe to the spindle drive is further thus particularly stable, such as in the event that the housing pipe is axially loaded in a direction away from the housing collar.
  • a sonotrode may be axially placed on the housing collar and, whilst from the axially opposing side, the housing pipe is joined to and is in contact with the housing collar, is caused to carry out a mechanical oscillation in the ultrasound range, such as in the range from 16 to 100 kHz, or in the range from 20 to 50 kHz, or in the range from 20 to 35 kHz.
  • a laser welding for example, laser transmission welding, is also conceivable.
  • a housing collar which is connection in a first coupling portion of the spindle drive to the first housing pipe in a materially engaging manner and which in a second coupling portion of the spindle drive is connected to the housing cover in an axially secure manner.
  • the materially engaging connection may according to another embodiment, be formed by a weld connection, preferably an ultrasonic weld connection. According to an alternative, however, it is in principle also conceivable to provide an adhesive connection for this purpose.
  • the housing collar has at least one receiving space.
  • this space receives the pipe end and the resulting melt and thus ensures a materially engaging connection when the melt has hardened.
  • the receiving space receives the pipe end and the adhesive which has been introduced and thus ensures a materially engaging connection when the adhesive has hardened.
  • One or more embodiments relate to an axial end portion of the first housing pipe which is used for materially engaging connection to the housing collar.
  • this axial end portion is at least partially molten, whereby the melt which, together with the axial end portion, further at least partially fills the receiving space in the assembled state is formed.
  • the axial end portion of the first housing pipe is at least partially adhesively bonded in the receiving space.
  • the axial end portion preferably extends as far as an axial stop element which is provided on the housing pipe and which can cooperate according to claim 7 with a counter-stop element of the housing collar in such a manner that an axial movement of the first housing pipe relative to the housing collar is blocked in a correct end position.
  • an axial gap may also remain between the stop element and counter-stop element.
  • the housing collar may be an annularly circumferential component.
  • the component may in this instance be configured to extend without interruptions, that is to say, to extend as a continuous ring, or with a circumferential interruption.
  • the housing collar then has for example a substantially horseshoe-like shape.
  • One or more embodiments relate to a torsion prevention means, that may be provided between the housing collar and the housing cover.
  • This means is for example configured in such a manner that a rotational movement of the housing collar relative to the housing cover is possible neither in one rotation direction nor in the other.
  • the housing collar is a plastic material component.
  • This may be a single-component plastic material component or a multi-component plastic material component.
  • a multi-component plastic material component for example a two-component plastic material component, it may be in the case of a radially inner portion a soft component and in the case of a radially outer portion a hard component.
  • a soft component differs from a hard component in that the soft component has a lower hardness and is consequently more resilient than the hard component.
  • the first housing pipe is also a plastic material component. In a particularly preferred manner, in the event that two housing pipes are provided, both housing pipes are a plastic material component in each case.
  • Another embodiment defines melting points of the material of the housing collar and the first housing pipe.
  • the melting point of the housing collar is equal to or greater than that of the housing pipe.
  • substantially only the housing pipe is molten, which is promoted for example by a cross section of the pipe wall which tapers in the direction towards the pipe end.
  • One or more embodiments relate to water discharge channels in the housing collar which extend for example from the lower side to the upper side thereof.
  • the first coupling portion and/or the receiving space of the housing collar is radially and/or axially spaced apart from the second coupling portion or adjacent thereto.
  • connection between the housing collar and the housing cover and the connection between the housing cover and the first drive connection describe the connection between the housing collar and the housing cover and the connection between the housing cover and the first drive connection.
  • the connection between the housing collar and housing cover may be an axially positive-locking and/or axially non-positive-locking connection, for example an axial locking connection.
  • the housing collar is first guided over the outer end of the first drive connection, for example a ball socket or a ball head, the housing collar is then axially placed on the housing cover and preferably axially engaged therewith.
  • the mentioned housing pipe is then subsequently moved from the axially opposing side, that is to say, from the second drive connection, in the direction of the housing collar and then, in the receiving space of the housing collar, connected thereto in a materially engaging manner, preferably via the weld connection.
  • the housing pipe is in contact with the housing collar, for example in the receiving space and is molten at the end side.
  • the housing pipe is moved further in the direction of the housing collar, preferably by at least 0.25 mm, more preferably by at least 0.5 mm, more preferably by at least 0.75 mm. In this manner, after the melt has hardened, the housing pipe is connected to the first drive connection in an axially secure manner.
  • FIG. 1 shows the rear region of a motor vehicle having a spindle drive according to the proposal
  • FIG. 2 shows a longitudinal section of the spindle drive according to FIG. 1 a ) in the retracted state and b) in the extended state
  • FIG. 3 shows individual detailed views of a spindle drive according to the proposal according to a first embodiment a) during assembly and b) after assembly,
  • FIG. 4 shows individual detailed views of a spindle drive according to the proposal according to a second embodiment a) during assembly and b) after assembly,
  • FIG. 5 shows individual detailed views of a spindle drive according to the proposal according to a third embodiment a) during assembly and b) after assembly.
  • a known spindle drive is provided in DE 10 2016 120 178 A1, which sets out a tubular, two-part drive housing having two housing pipes in the form of an outer housing pipe and an inner housing pipe which extends therein in a telescopic manner. Furthermore, two drive connections for discharging drive movements of the spindle drive are provided.
  • the drive housing is provided in the region of each drive connection with a housing cover, which is arranged in an axially secure manner with respect to the drive connection and to which the respective housing pipe is coupled in an axially secure manner.
  • a spindle/spindle nut transmission which is arranged downstream of a drive motor in technical driving terms.
  • the drive motor is supported in a motor casing whose axial end facing the respective drive connection is formed by one of the housing covers.
  • the outer housing pipe is axially engaged with this cover in a positive-locking manner by means of a clip-fit connection.
  • the outer housing pipe is consequently also axially secure with respect to the associated drive connection.
  • the clip-fit connection enables simple assembly of the housing pipe in the region of the associated drive connection.
  • the housing pipe thus needs only to be pushed axially in the direction of the housing cover into the correct end position, in which a locking projection which is provided radially at the outer side on the cover cooperates with a corresponding pipe opening which forms a locking receiving member in an axially positive-locking manner.
  • a pipe locking receiving member may in this instance be provided in a resilient, flap-like portion of the housing pipe which can be redirected radially outwards during assembly in order to be able to guide the housing pipe over the locking projection. In the correct end position, the flap-like portion rebounds in the direction of its original position again, whereby the positive-locking connection is produced.
  • the connection between the outer housing pipe and the spindle drive may be further optimized with regard to stability.
  • the spindle drive 1 shown in the drawings is associated with an adjustment element 2 of a motor vehicle which may be a boot lid 3 . All explanations relating to a boot lid 3 also apply in this instance to all other types of adjustment elements 2 of a motor vehicle. In this regard, reference may be made to the exemplary listing in the introductory portion of the description.
  • the spindle drive 1 is used for adjustment, such as motorised adjustment, of the boot lid 3 .
  • the spindle drive 1 is articulated to the motor vehicle body, on the one hand, and to the boot lid 3 , on the other hand, in each case in a state spaced apart from a pivot axis of the boot lid 3 .
  • the spindle drive 1 generates linear drive movements along an axially extending geometric drive axis 4 so that the boot lid 3 can be adjusted in a motorized manner between a closed position and the open position illustrated in FIG. 1 .
  • FIGS. 1 and 2 show that the spindle drive 1 has a tubular drive housing 5 having at least a first housing pipe 5 a , in this instance two housing pipes 5 a , 5 b .
  • the first housing pipe 5 a can in principle in an alternative embodiment which is not illustrated here also be the single housing pipe.
  • the outer housing pipe 5 a forms the first housing pipe mentioned.
  • the inner housing pipe 5 b may also form the first housing pipe mentioned.
  • a drive motor 6 in the drive housing 5 along the drive axis 4 there are provided one behind the other a drive motor 6 and, in order to produce the linear drive movements, a spindle/spindle nut transmission 7 which is arranged downstream of the drive motor 6 . Between the drive motor 6 and the spindle/spindle nut transmission 7 , an intermediate transmission may be provided where applicable.
  • the drive motor 6 drives a spindle 8 as a transmission component of the spindle/spindle nut transmission 7 so that a spindle nut 9 which is in meshing engagement therewith carries out an axial movement as an additional transmission component of the spindle/spindle nut transmission 7 which is supported in a rotationally secure but axially movable manner in the spindle drive 1 .
  • first drive connection 10 and a second drive connection 11 which are arranged for example on the drive axle 4 .
  • the first drive connection 10 forms with one of the transmission components, in this instance the spindle 8 , a first drive train component 12 .
  • the drive motor 6 is also a component of the first drive train component 12 .
  • the first drive connection 10 is in this instance arranged at the motor side of the spindle drive 1 .
  • the first housing pipe 5 a is in this instance arranged in an axially secure manner relative to the first drive connection 10 .
  • the term “axially secure” means that the two elements which are axially secure with respect to each other, in this instance the first housing pipe 5 a and the first drive connection 10 , are non-movable relative to each other in both axial directions.
  • the second drive connection 11 forms with the other one of the transmission components, in this instance the spindle nut 9 , a second drive train component 13 .
  • a spindle nut pipe 14 which in this instance forms a guiding pipe for guiding the spindle 8 , connects in this instance the spindle nut 9 in an axially secure and rotationally secure manner to the second drive connection 11 and is also a component of the second drive train component 13 .
  • the second drive connection 11 is in this instance arranged at the side of the spindle drive 1 facing away from the motor, that is to say, at the output side.
  • a helical spring 15 in this case a helical compression spring, which pretensions the two drive connections 10 , 11 away from each other, that is to say, into the extended position of the spindle drive 1 .
  • both drive connections 10 , 11 are provided with a ball socket.
  • the respective drive connection 10 , 11 may also be provided with a ball head or another connection element.
  • the ball socket of the first drive connection 10 is connected in an axially secure and for example rotationally secure manner to a housing cover 16 which axially closes the drive housing 5 .
  • the spindle 8 is, in this instance via the drive motor 6 , supported so as to be axially secure and rotatable relative to the housing cover 16 .
  • the ball socket of the second drive connection 11 is connected to the spindle nut pipe 14 in an axially secure and for example rotationally secure manner.
  • the structure of the spindle drive 1 according to the proposal corresponds to the structure of the spindle drive set out in DE 10 2016 120 178 A1 which is from the same Applicant and the content of which is incorporated in the present application by reference in this regard.
  • a housing collar 17 which in a first coupling portion 18 of the spindle drive 1 is connected to the first housing pipe 5 a in a materially engaging manner and which in a second coupling portion 20 of the spindle drive 1 is coupled to the housing cover 16 in an axially secure manner.
  • the coupling portions 18 , 20 are in this instance preferably radially and/or axially spaced apart from each other or axially adjacent to each other but may also axially overlap.
  • the housing collar 17 is in the first coupling portion 18 of the spindle drive 1 connected to the first housing pipe 5 a in a materially engaging manner by means of a weld connection 19 , preferably an ultrasonic weld connection.
  • a weld connection 19 may in principle also be produced by means of laser welding, for example laser transmission welding.
  • an adhesive connection is also conceivable. Otherwise, however, the ultrasonic welding should be the main type.
  • the housing collar 17 is coupled to the housing cover 16 in an axially secure manner.
  • the term “coupled in an axially secure manner” means in this instance that the housing collar 17 and the housing cover 16 are connected to each other in such a manner that, as a result of this shape of the connection, a relative movement between the housing collar 17 and housing cover 16 is possible neither in one axial direction nor in the other axial direction.
  • the housing collar 17 has, for example, at least one receiving space 21 , for example at least one and here precisely one circumferentially groove-like receiving space 21 which is illustrated to an enlarged scale at the bottom left in FIG. 3 .
  • This receiving space 21 serves in this instance to receive melt S of the first housing pipe 5 a , which melt is produced during the assembly by means of a welding operation, in this instance an ultrasonic welding operation.
  • this receiving space 21 serves to receive adhesive which has been introduced during the assembly by means of an adhesive bonding operation.
  • the receiving space 21 is formed by an axial recess 22 , for example a groove, at the side of the housing collar 17 facing the first housing pipe 5 a .
  • the axial recess 22 which forms the receiving space 21 has, as illustrated to an enlarged scale at the bottom left in FIG. 3 , at least one inner wall 22 a , in this instance two inner walls 22 a which are radially opposite each other, and a base 22 b.
  • At least one inner wall 22 a in this instance both inner walls 22 a , and/or the base 22 b is/are connected in a materially engaging manner to an axial end portion 23 of the first housing pipe 5 a , which is formed by means of hardened melt S which has been produced during assembly by the welding operation.
  • the inner walls 22 a have in this instance, in cross section, an axial extent and the base 22 b has a radial extent.
  • At least one inner wall 22 a is/are adhesively bonded to an axial end portion 23 of the first housing pipe 5 a.
  • the axial end portion 23 of the first housing pipe 5 a during assembly is at least partially molten by the welding operation and forms the melt S which then at least partially fills the receiving space 21 in the mounted state.
  • an adhesive bonding operation is provided, it is then accordingly the case that the axial end portion 23 of the first housing pipe 5 a during assembly is at least partially adhesively bonded in the receiving space 21 by the adhesive bonding operation, wherein the adhesive in the assembled state at least partially fills the receiving space 21 .
  • the axial end portion 23 extends from the pipe end 24 facing away from the second drive connection 11 to an axial stop element 25 , in this instance in the form of a partially or completely circumferential, radially external projection. Alternatively, it may also be a partially or completely circumferential, radially internal projection.
  • completely circumferential means in this instance that the stop element 25 or the projection extends in an uninterrupted manner over the entire circumference of the housing pipe 5 a .
  • the term “partially circumferential” means that, along the circumference of the housing pipe 5 a , at least one region 33 without a radial projection is provided, as illustrated for example in FIG. 3 b ).
  • the housing collar 17 is further radially flattened in this case.
  • the drive housing 5 or the spindle drive 1 thereby has in a radial direction a reduced width which saves structural space. Even more structural space can be saved if such a region 33 is provided at two opposing sides of the drive housing 5 or spindle drive 1 , as illustrated by the section B-B in FIG. 3 .
  • the stop element 25 of the first housing pipe 5 a can for example cooperate with a counter-stop element 26 of the housing collar 17 in such a manner that an axial movement of the first housing pipe 5 a relative to the housing collar 17 is blocked in a correct end position. In principle, however, in the assembled state an axial gap may remain between the stop element 25 and counter-stop element 26 , as shown in FIG. 3 at the bottom right.
  • FIG. 3 also shows in the lower illustration of the assembly operation and in the enlarged detail of FIG. 3 a ) that, for example, in the axial end portion 23 the cross section of the pipe wall 27 of the first housing pipe 5 a tapers in the unmounted state in the direction towards the pipe end 24 .
  • the tapering simplifies the melting of the material of the first housing pipe 5 a in this region, for example during ultrasonic welding.
  • the cross section of the pipe wall 27 starting from the axial stop element 25 , in the unmounted state towards the pipe end 24 , is initially uniform in a region and then tapers. As shown in FIG.
  • the cross section of the pipe wall 27 is further initially uniform in a region and then expands in this case.
  • the last effect is a result of the fact that the melt S is distributed in the receiving space 21 and for example also laterally, in this instance at the radially inner side, can flow down at the axial end portion 23 .
  • the radial extent of the receiving space 21 in the unmounted state and/or in the mounted state is greater than the radial extent of the pipe wall 27 in the region of the uniform cross section.
  • the housing collar 17 is an annularly circumferential component which extends in this instance with a circumferential interruption 28 and which for example is coupled in an axially secure manner to the housing cover 16 only when the cover is also already fixed in an axially secure manner to the spindle drive 1 .
  • the housing collar 17 is also an annularly circumferential component which extends in this instance with a circumferential interruption 28 , wherein the housing collar 17 is, however, already pre-mounted on the housing cover 16 before it is secured, where applicable also configured in one piece therewith.
  • the housing collar 17 in the embodiment according to FIG. 4 is also an annularly circumferential component but in this instance a circumferential component without any interruptions.
  • a torsion prevention means 29 is provided between the housing collar 17 and the housing cover 16 .
  • the torsion prevention means 29 is formed by a recess 29 a in the housing collar 17 , for example in the form of an axial recess or a circumferential interruption in the housing collar 17 , together with a corresponding counter-piece 29 b on the housing cover 16 .
  • the recess 29 a at least partially overlaps the interruption 28 axially.
  • the housing collar 17 is, for example, in the same manner as the first housing pipe 5 a , a plastic material component, for example a single-component or multi-component plastic material component 30 , preferably, as in the embodiment according to FIG. 4 , a two-component plastic material component.
  • a radially inner portion 17 a of the housing collar 17 is formed here by a soft component and a radially outer portion 17 b of the housing collar 17 is formed by a hard component.
  • the portion 17 a formed by the soft component to extend partially radially outwards.
  • the portion 17 a further has here a cable feed-through 31 for an electric cable, for example, power cable.
  • the portion 17 a is suitable for providing a seal between the housing collar 17 and drive connection 10 and/or between the housing collar 17 and cable.
  • the housing collar 17 on the whole or in a portion 17 b for example in the portion 17 b formed by the hard component, to have a material which has a melting point which is equal to or higher than that of the material of the first housing pipe 5 a , at least in the end portion 23 thereof.
  • the housing collar 17 may further, as in FIG. 3 , have one or more axial and/or radial water discharge channels 32 which lead from the side of the housing collar 17 facing the second drive connection 11 and/or from the receiving space 21 to the side of the housing collar 17 facing away from the first housing pipe 5 a or to the radial outer side of the housing collar 17 . Furthermore, there may be provision between two circumferential portions 23 a of the axial end portion 23 for a radial groove 23 b to be provided in the end portion 23 , for example in the tapering part-portion, which in the assembled state preferably forms a radial water discharge channel and/or is in fluid connection with a water discharge channel 32 of the housing collar 17 .
  • the first coupling portion 18 of the spindle drive 1 and/or the receiving space 21 of the housing collar 17 may be radially spaced apart from the second coupling portion 20 of the spindle drive 1 or adjacent thereto. Additionally or alternatively, the first coupling portion 18 of the spindle drive 1 and/or the receiving space 21 of the housing collar 17 may be axially spaced apart from the second coupling portion 20 of the spindle drive 1 or adjacent thereto. In principle, however, an axial and/or radial overlapping of the two coupling portions 18 , 20 is also conceivable.
  • the axially secure coupling between the housing collar 17 and housing cover 16 in the second coupling portion 20 is produced by means of an axially positive-locking and/or an axially non-positive-locking connection, for example a locking connection.
  • the housing collar 17 has in this instance at least one radially internal projection 20 a and/or at least one radially internal recess and the housing cover 16 has at least one corresponding counter-piece 20 b ( FIG. 3 ).
  • the housing cover 16 may also be provision for the housing cover 16 to be connected to the housing collar 17 and/or the first drive connection 10 in a materially engaging manner or for the housing cover 16 to be configured in an integral manner with the housing collar 17 and/or the first drive connection 10 .
  • Such an integral portion is then preferably initially fixed to the housing of the motor casing 34 in an axially secure manner, for example by means of crimping, and only then is the materially engaging connection produced between the housing collar 17 and housing pipe 5 a , for example by means of welding.
  • a drive motor 6 is provided in the drive housing 5 in all embodiments.
  • the housing cover 16 is a component of a motor casing 34 for receiving the drive motor 6 .
  • the drive motor 6 is thus in this instance supported in a motor casing 34 which can in addition also receive an intermediate transmission, a brake and/or a clutch.
  • the axial end of the motor casing 34 facing the respective drive connection 10 is formed by the housing cover 16 .
  • the housing cover 16 may, however, also be a component of the drive motor 6 itself.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
US17/797,667 2020-02-05 2021-02-02 Spindle drive Pending US20230060788A1 (en)

Applications Claiming Priority (3)

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DE102020102846.6A DE102020102846A1 (de) 2020-02-05 2020-02-05 Spindelantrieb
DE102020102846.6 2020-02-05
PCT/EP2021/052347 WO2021156217A1 (de) 2020-02-05 2021-02-02 Spindelantrieb

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US20230060788A1 true US20230060788A1 (en) 2023-03-02

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US17/797,667 Pending US20230060788A1 (en) 2020-02-05 2021-02-02 Spindle drive

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US (1) US20230060788A1 (zh)
CN (1) CN115023529B (zh)
DE (1) DE102020102846A1 (zh)
WO (1) WO2021156217A1 (zh)

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TWI809890B (zh) * 2022-05-23 2023-07-21 智崴資訊科技股份有限公司 伸縮缸接頭結構
DE102022114876B3 (de) 2022-06-14 2023-10-19 Schaeffler Technologies AG & Co. KG Linearaktuator
DE102023100197A1 (de) 2023-01-04 2024-07-04 Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg Verstellanordnung für ein Verschlusselement eines Kraftfahrzeugs

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US20060270330A1 (en) * 2005-04-28 2006-11-30 Kurt Schmid Linear drive unit
US9765809B2 (en) * 2011-10-21 2017-09-19 Brose Schliesssysteme Gmbh & Co. Kg Method for producing a spindle drive for an adjusting element of a motor vehicle
US20170268276A1 (en) * 2012-09-25 2017-09-21 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt Spindle drive for an adjustment element of a motor vehicle
US20190032389A1 (en) * 2017-07-26 2019-01-31 Stabilus Gmbh Spindle drive apparatus

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DE202008016615U1 (de) * 2008-12-17 2010-04-29 BROSE SCHLIEßSYSTEME GMBH & CO. KG Antrieb für ein Verstellelement eines Kraftfahrzeugs
DE102008062391A1 (de) 2008-12-17 2010-06-24 BROSE SCHLIEßSYSTEME GMBH & CO. KG Spindelantrieb für ein Verstellelement eines Kraftfahrzeugs
DE202010009334U1 (de) 2010-06-21 2011-09-22 BROSE SCHLIEßSYSTEME GMBH & CO. KG Spindelantrieb für die motorische Verstellung eines Verstellelements eines Kraftfahrzeugs
DE102016120178A1 (de) 2016-10-24 2018-04-26 Brose Fahrzeugteile Gmbh & Co. Kg, Bamberg Spindelantrieb
CN107317428A (zh) * 2017-03-28 2017-11-03 德昌电机(深圳)有限公司 汽车尾门升降装置及其驱动装置
DE102017117993A1 (de) 2017-08-08 2019-02-14 Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Bamberg Spindelantrieb für ein Verschlusselement eines Kraftfahrzeugs
DE102017128392A1 (de) 2017-11-30 2019-06-06 U-Shin Deutschland Zugangssysteme Gmbh Spindelantriebsbaugruppe, Fahrzeugklappe mit einer Spindelantriebsbaugruppe sowie Verfahren zur Montage einer Spindelantriebsbaugruppe
DE102019101065A1 (de) * 2019-01-16 2020-07-16 Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg Spindelantrieb für ein Verstellelement eines Kraftfahrzeugs

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US20060270330A1 (en) * 2005-04-28 2006-11-30 Kurt Schmid Linear drive unit
US9765809B2 (en) * 2011-10-21 2017-09-19 Brose Schliesssysteme Gmbh & Co. Kg Method for producing a spindle drive for an adjusting element of a motor vehicle
US20170268276A1 (en) * 2012-09-25 2017-09-21 Brose Fahrzeugteile Gmbh & Co. Kg, Hallstadt Spindle drive for an adjustment element of a motor vehicle
US20190032389A1 (en) * 2017-07-26 2019-01-31 Stabilus Gmbh Spindle drive apparatus

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WO2021156217A1 (de) 2021-08-12
CN115023529A (zh) 2022-09-06
CN115023529B (zh) 2024-04-26
DE102020102846A1 (de) 2021-08-05

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